Silk pajamas of the highest possible quality were not exactly de rigueur among millennials and Gen Z until Olivia von Halle proposed the idea in a way that few could resist. The London-based designer, who studied fashion and textiles at the University of Leeds, is a bit of a bon vivant. In her 20s, she found herself yearning for stylish but comfortable silk separates to elevate the experience of an at-home nightcap. At her flagship, on Pavilion Road near Sloane Square, her elegant, colorful collection includes robes, dresses, and slippers, many of which can be personalized. This month, as she debuts a line of cashmere robes, pajamas, and tracksuits, she shares her key components to the good life. —Ashley Baker

Airline: Emirates.
Alibi: The truth.
App: WhatsApp, so I can stay in touch with my family.
Bag: Chloé’s Marcie bag, in white.
Bedtime: Dawn, having danced the night away.
Birthday: My 40th, in Ibiza, with some of my closest family and friends. No better way to celebrate.
Boyfriend: My husband, Hugo.
Breakfast, weekday
: I don’t eat breakfast, but I love an expertly made flat white.
Breakfast, weekend
: I love to drink Earl Grey tea whilst taking a long, hot bath.
Car
: A 1969 Dodge Charger.
ChildREN
: My three!
Cocktail
: A Suffering Bathwater. It’s three parts gin to one part Cointreau, with a dash of lime. It was invented on the back of a particularly wild night out, and it’s absolutely lethal.
Cocktail appetizer
: Padrón peppers.